Invisible signature found on painting

Updated
February 15, 2012 09:54:49

Sotheby's employees carry the 1982 painting, Orange Sports Figure, by US artist Jean-Michel Basquiat, at Sotheby's in London. On February 14, 2012, experts revealed they had discovered an invisible ink signature made by Basquiat on the painting, which could add further value to the artwork when it is sold at auction. Read the story